<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>base-use</title>
</head>
<body>
  <div id="app">
    <div>{{ msg }}</div>
    <div>{{ count }}</div>
    <div><input type="text" name="" id="" v-model="msg" /></div>
    <div><input type="text" name="" id="" v-model="count" /></div>
  </div>
  <script src="./js/vue.js"></script>
  <script>
    let vm = new Vue({
      el: '#app',
      data: {
        msg: 'hello, my vue app',
        count: 10
      }
    })
  </script>
</body>
</html>